O-GlcNAcylation and stablization of SIRT7 promote pancreatic cancer progression by blocking the SIRT7-REGγ interaction

Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal cancers and its dismal prognosis indicates the urgent need to elucidate the potential oncogenic mechanisms. SIRT7 is a classic NAD + -dependent deacetylase that stabilizes the transformed state of cancer cells. However, its functional...

Ausführliche Beschreibung

Gespeichert in:
Bibliographische Detailangaben
Veröffentlicht in:Cell death and differentiation 2022-10, Vol.29 (10), p.1970-1981
Hauptverfasser: He, Xiaoman, Li, Yongzhou, Chen, Qing, Zheng, Lei, Lou, Jianyao, Lin, Chuanshuai, Gong, Jiali, Zhu, Yi, Wu, Yulian
Format: Artikel
Sprache:eng
Schlagworte:
Online-Zugang:Volltext
Tags: Tag hinzufügen
Keine Tags, Fügen Sie den ersten Tag hinzu!
container_end_page 1981
container_issue 10
container_start_page 1970
container_title Cell death and differentiation
container_volume 29
creator He, Xiaoman
Li, Yongzhou
Chen, Qing
Zheng, Lei
Lou, Jianyao
Lin, Chuanshuai
Gong, Jiali
Zhu, Yi
Wu, Yulian
description Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal cancers and its dismal prognosis indicates the urgent need to elucidate the potential oncogenic mechanisms. SIRT7 is a classic NAD + -dependent deacetylase that stabilizes the transformed state of cancer cells. However, its functional roles in PDAC are still unclear. Here, we found that SIRT7 expression is upregulated and predicts poor prognosis in PDAC. Then we screened the new interacting proteins of SIRT7 by mass spectrometry and the results showed that SIRT7 can interact with O-GlcNAc transferase (OGT). O-GlcNAcylation stabilizes the SIRT7 protein by inhibiting its interaction with REGγ to prevent degradation, and hyper-O-GlcNAcylation in pancreatic cancer cells leads to hypoacetylation of H3K18 via SIRT7, which promotes transcriptional repression of several tumour suppressor genes. In addition, SIRT7 O-GlcNAcylation at the serine 136 residue (S136) is required to maintain its protein stability and deacetylation ability. In vivo and in vitro experiments showed that blocking SIRT7 O-GlcNAcylation at S136 attenuates tumour progression. Collectively, we demonstrate that O-GlcNAcylation is an important post-translational modification of SIRT7 in pancreatic cancer cells, and elucidating this mechanism of SIRT7 is expected to pave the way for the development of novel therapeutic methods in the future.
doi_str_mv 10.1038/s41418-022-00984-3
format Article
fullrecord <record><control><sourceid>proquest_pubme</sourceid><recordid>TN_cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_9525610</recordid><sourceformat>XML</sourceformat><sourcesystem>PC</sourcesystem><sourcerecordid>2651687091</sourcerecordid><originalsourceid>FETCH-LOGICAL-c474t-80325275102e1d3862e7db720d8014c0610c8fe8550bfc7943e5827e1a58d27f3</originalsourceid><addsrcrecordid>eNp9kc1u1DAUhS0EoqXwAixQJDZsDNd_sbNBqqp2qFS1Uilry3FupikZe7AzVMNr8R48Ex7Slp8FK1_5fOfYV4eQlwzeMhDmXZZMMkOBcwrQGEnFI7LPpK6pkiAel1kooA1IvUee5XwDALVu6qdkTyjJuWzEPrm9oIvRnx_67eimIYbKha7Kk2vH4dt8Efvq4-nlla7WKa7ihNXaBZ-wiL7yZcS0U5YJc97h7bZqx-g_D2FZTdc4e-nl8eLH92oIEybnd7HPyZPejRlf3J0H5NPJ8dXRB3p2sTg9OjyjXmo5UQOCK64VA46sE6bmqLtWc-gMMOmhZuBNj0YpaHuvGylQGa6ROWU6rntxQN7PuetNu8LOY5iSG-06DSuXtja6wf6thOHaLuNX2yiuSnoJeHMXkOKXDebJrobscRxdwLjJlteK1UZDwwr6-h_0Jm5SKOtZrllTCy6NKRSfKZ9izgn7h88wsLte7dyrLb3aX71aUUyv_lzjwXJfZAHEDOQihSWm32__J_YnNJ2uqA</addsrcrecordid><sourcetype>Open Access Repository</sourcetype><iscdi>true</iscdi><recordtype>article</recordtype><pqid>2719632488</pqid></control><display><type>article</type><title>O-GlcNAcylation and stablization of SIRT7 promote pancreatic cancer progression by blocking the SIRT7-REGγ interaction</title><source>MEDLINE</source><source>Springer Nature - Complete Springer Journals</source><source>Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals</source><source>PubMed Central</source><creator>He, Xiaoman ; Li, Yongzhou ; Chen, Qing ; Zheng, Lei ; Lou, Jianyao ; Lin, Chuanshuai ; Gong, Jiali ; Zhu, Yi ; Wu, Yulian</creator><creatorcontrib>He, Xiaoman ; Li, Yongzhou ; Chen, Qing ; Zheng, Lei ; Lou, Jianyao ; Lin, Chuanshuai ; Gong, Jiali ; Zhu, Yi ; Wu, Yulian</creatorcontrib><description>Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal cancers and its dismal prognosis indicates the urgent need to elucidate the potential oncogenic mechanisms. SIRT7 is a classic NAD + -dependent deacetylase that stabilizes the transformed state of cancer cells. However, its functional roles in PDAC are still unclear. Here, we found that SIRT7 expression is upregulated and predicts poor prognosis in PDAC. Then we screened the new interacting proteins of SIRT7 by mass spectrometry and the results showed that SIRT7 can interact with O-GlcNAc transferase (OGT). O-GlcNAcylation stabilizes the SIRT7 protein by inhibiting its interaction with REGγ to prevent degradation, and hyper-O-GlcNAcylation in pancreatic cancer cells leads to hypoacetylation of H3K18 via SIRT7, which promotes transcriptional repression of several tumour suppressor genes. In addition, SIRT7 O-GlcNAcylation at the serine 136 residue (S136) is required to maintain its protein stability and deacetylation ability. In vivo and in vitro experiments showed that blocking SIRT7 O-GlcNAcylation at S136 attenuates tumour progression. Collectively, we demonstrate that O-GlcNAcylation is an important post-translational modification of SIRT7 in pancreatic cancer cells, and elucidating this mechanism of SIRT7 is expected to pave the way for the development of novel therapeutic methods in the future.</description><identifier>ISSN: 1350-9047</identifier><identifier>EISSN: 1476-5403</identifier><identifier>DOI: 10.1038/s41418-022-00984-3</identifier><identifier>PMID: 35422493</identifier><language>eng</language><publisher>London: Nature Publishing Group UK</publisher><subject>101/58 ; 13/89 ; 631/67/395 ; 631/80/221 ; Adenocarcinoma ; Apoptosis ; Autoantigens ; Biochemistry ; Biomedical and Life Sciences ; Carcinoma, Pancreatic Ductal ; Cell Biology ; Cell Cycle Analysis ; Cell Proliferation ; Deacetylation ; Gene silencing ; Humans ; Life Sciences ; Mass spectroscopy ; N-Acetylglucosaminyltransferases - genetics ; N-Acetylglucosaminyltransferases - metabolism ; NAD - metabolism ; O-GlcNAcylation ; Pancreatic cancer ; Pancreatic Neoplasms ; Pancreatic Neoplasms - metabolism ; Post-translation ; Prognosis ; Proteasome Endopeptidase Complex ; Protein Processing, Post-Translational ; Serine - metabolism ; Sirtuins - genetics ; Sirtuins - metabolism ; Stem Cells ; Tumor suppressor genes ; Tumors</subject><ispartof>Cell death and differentiation, 2022-10, Vol.29 (10), p.1970-1981</ispartof><rights>The Author(s) 2022</rights><rights>2022. The Author(s).</rights><rights>The Author(s) 2022. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c474t-80325275102e1d3862e7db720d8014c0610c8fe8550bfc7943e5827e1a58d27f3</citedby><cites>FETCH-LOGICAL-c474t-80325275102e1d3862e7db720d8014c0610c8fe8550bfc7943e5827e1a58d27f3</cites><orcidid>0000-0002-2199-4353 ; 0000-0002-1459-0158 ; 0000-0001-6179-4586 ; 0000-0002-9416-6663 ; 0000-0003-2675-5834 ; 0000-0001-6662-9440 ; 0000-0002-6576-8008 ; 0000-0002-4090-0551 ; 0000-0003-0548-2742</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC9525610/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC9525610/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,881,27901,27902,41464,42533,51294,53766,53768</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/35422493$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>He, Xiaoman</creatorcontrib><creatorcontrib>Li, Yongzhou</creatorcontrib><creatorcontrib>Chen, Qing</creatorcontrib><creatorcontrib>Zheng, Lei</creatorcontrib><creatorcontrib>Lou, Jianyao</creatorcontrib><creatorcontrib>Lin, Chuanshuai</creatorcontrib><creatorcontrib>Gong, Jiali</creatorcontrib><creatorcontrib>Zhu, Yi</creatorcontrib><creatorcontrib>Wu, Yulian</creatorcontrib><title>O-GlcNAcylation and stablization of SIRT7 promote pancreatic cancer progression by blocking the SIRT7-REGγ interaction</title><title>Cell death and differentiation</title><addtitle>Cell Death Differ</addtitle><addtitle>Cell Death Differ</addtitle><description>Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal cancers and its dismal prognosis indicates the urgent need to elucidate the potential oncogenic mechanisms. SIRT7 is a classic NAD + -dependent deacetylase that stabilizes the transformed state of cancer cells. However, its functional roles in PDAC are still unclear. Here, we found that SIRT7 expression is upregulated and predicts poor prognosis in PDAC. Then we screened the new interacting proteins of SIRT7 by mass spectrometry and the results showed that SIRT7 can interact with O-GlcNAc transferase (OGT). O-GlcNAcylation stabilizes the SIRT7 protein by inhibiting its interaction with REGγ to prevent degradation, and hyper-O-GlcNAcylation in pancreatic cancer cells leads to hypoacetylation of H3K18 via SIRT7, which promotes transcriptional repression of several tumour suppressor genes. In addition, SIRT7 O-GlcNAcylation at the serine 136 residue (S136) is required to maintain its protein stability and deacetylation ability. In vivo and in vitro experiments showed that blocking SIRT7 O-GlcNAcylation at S136 attenuates tumour progression. Collectively, we demonstrate that O-GlcNAcylation is an important post-translational modification of SIRT7 in pancreatic cancer cells, and elucidating this mechanism of SIRT7 is expected to pave the way for the development of novel therapeutic methods in the future.</description><subject>101/58</subject><subject>13/89</subject><subject>631/67/395</subject><subject>631/80/221</subject><subject>Adenocarcinoma</subject><subject>Apoptosis</subject><subject>Autoantigens</subject><subject>Biochemistry</subject><subject>Biomedical and Life Sciences</subject><subject>Carcinoma, Pancreatic Ductal</subject><subject>Cell Biology</subject><subject>Cell Cycle Analysis</subject><subject>Cell Proliferation</subject><subject>Deacetylation</subject><subject>Gene silencing</subject><subject>Humans</subject><subject>Life Sciences</subject><subject>Mass spectroscopy</subject><subject>N-Acetylglucosaminyltransferases - genetics</subject><subject>N-Acetylglucosaminyltransferases - metabolism</subject><subject>NAD - metabolism</subject><subject>O-GlcNAcylation</subject><subject>Pancreatic cancer</subject><subject>Pancreatic Neoplasms</subject><subject>Pancreatic Neoplasms - metabolism</subject><subject>Post-translation</subject><subject>Prognosis</subject><subject>Proteasome Endopeptidase Complex</subject><subject>Protein Processing, Post-Translational</subject><subject>Serine - metabolism</subject><subject>Sirtuins - genetics</subject><subject>Sirtuins - metabolism</subject><subject>Stem Cells</subject><subject>Tumor suppressor genes</subject><subject>Tumors</subject><issn>1350-9047</issn><issn>1476-5403</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2022</creationdate><recordtype>article</recordtype><sourceid>C6C</sourceid><sourceid>EIF</sourceid><sourceid>BENPR</sourceid><recordid>eNp9kc1u1DAUhS0EoqXwAixQJDZsDNd_sbNBqqp2qFS1Uilry3FupikZe7AzVMNr8R48Ex7Slp8FK1_5fOfYV4eQlwzeMhDmXZZMMkOBcwrQGEnFI7LPpK6pkiAel1kooA1IvUee5XwDALVu6qdkTyjJuWzEPrm9oIvRnx_67eimIYbKha7Kk2vH4dt8Efvq4-nlla7WKa7ihNXaBZ-wiL7yZcS0U5YJc97h7bZqx-g_D2FZTdc4e-nl8eLH92oIEybnd7HPyZPejRlf3J0H5NPJ8dXRB3p2sTg9OjyjXmo5UQOCK64VA46sE6bmqLtWc-gMMOmhZuBNj0YpaHuvGylQGa6ROWU6rntxQN7PuetNu8LOY5iSG-06DSuXtja6wf6thOHaLuNX2yiuSnoJeHMXkOKXDebJrobscRxdwLjJlteK1UZDwwr6-h_0Jm5SKOtZrllTCy6NKRSfKZ9izgn7h88wsLte7dyrLb3aX71aUUyv_lzjwXJfZAHEDOQihSWm32__J_YnNJ2uqA</recordid><startdate>20221001</startdate><enddate>20221001</enddate><creator>He, Xiaoman</creator><creator>Li, Yongzhou</creator><creator>Chen, Qing</creator><creator>Zheng, Lei</creator><creator>Lou, Jianyao</creator><creator>Lin, Chuanshuai</creator><creator>Gong, Jiali</creator><creator>Zhu, Yi</creator><creator>Wu, Yulian</creator><general>Nature Publishing Group UK</general><general>Nature Publishing Group</general><scope>C6C</scope><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>3V.</scope><scope>7QP</scope><scope>7QR</scope><scope>7T5</scope><scope>7TK</scope><scope>7TM</scope><scope>7X7</scope><scope>7XB</scope><scope>88A</scope><scope>88E</scope><scope>8AO</scope><scope>8FD</scope><scope>8FE</scope><scope>8FH</scope><scope>8FI</scope><scope>8FJ</scope><scope>8FK</scope><scope>ABUWG</scope><scope>AFKRA</scope><scope>AZQEC</scope><scope>BBNVY</scope><scope>BENPR</scope><scope>BHPHI</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>FR3</scope><scope>FYUFA</scope><scope>GHDGH</scope><scope>GNUQQ</scope><scope>H94</scope><scope>HCIFZ</scope><scope>K9.</scope><scope>LK8</scope><scope>M0S</scope><scope>M1P</scope><scope>M7P</scope><scope>P64</scope><scope>PHGZM</scope><scope>PHGZT</scope><scope>PJZUB</scope><scope>PKEHL</scope><scope>PPXIY</scope><scope>PQEST</scope><scope>PQGLB</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>PRINS</scope><scope>RC3</scope><scope>7X8</scope><scope>5PM</scope><orcidid>https://orcid.org/0000-0002-2199-4353</orcidid><orcidid>https://orcid.org/0000-0002-1459-0158</orcidid><orcidid>https://orcid.org/0000-0001-6179-4586</orcidid><orcidid>https://orcid.org/0000-0002-9416-6663</orcidid><orcidid>https://orcid.org/0000-0003-2675-5834</orcidid><orcidid>https://orcid.org/0000-0001-6662-9440</orcidid><orcidid>https://orcid.org/0000-0002-6576-8008</orcidid><orcidid>https://orcid.org/0000-0002-4090-0551</orcidid><orcidid>https://orcid.org/0000-0003-0548-2742</orcidid></search><sort><creationdate>20221001</creationdate><title>O-GlcNAcylation and stablization of SIRT7 promote pancreatic cancer progression by blocking the SIRT7-REGγ interaction</title><author>He, Xiaoman ; Li, Yongzhou ; Chen, Qing ; Zheng, Lei ; Lou, Jianyao ; Lin, Chuanshuai ; Gong, Jiali ; Zhu, Yi ; Wu, Yulian</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c474t-80325275102e1d3862e7db720d8014c0610c8fe8550bfc7943e5827e1a58d27f3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2022</creationdate><topic>101/58</topic><topic>13/89</topic><topic>631/67/395</topic><topic>631/80/221</topic><topic>Adenocarcinoma</topic><topic>Apoptosis</topic><topic>Autoantigens</topic><topic>Biochemistry</topic><topic>Biomedical and Life Sciences</topic><topic>Carcinoma, Pancreatic Ductal</topic><topic>Cell Biology</topic><topic>Cell Cycle Analysis</topic><topic>Cell Proliferation</topic><topic>Deacetylation</topic><topic>Gene silencing</topic><topic>Humans</topic><topic>Life Sciences</topic><topic>Mass spectroscopy</topic><topic>N-Acetylglucosaminyltransferases - genetics</topic><topic>N-Acetylglucosaminyltransferases - metabolism</topic><topic>NAD - metabolism</topic><topic>O-GlcNAcylation</topic><topic>Pancreatic cancer</topic><topic>Pancreatic Neoplasms</topic><topic>Pancreatic Neoplasms - metabolism</topic><topic>Post-translation</topic><topic>Prognosis</topic><topic>Proteasome Endopeptidase Complex</topic><topic>Protein Processing, Post-Translational</topic><topic>Serine - metabolism</topic><topic>Sirtuins - genetics</topic><topic>Sirtuins - metabolism</topic><topic>Stem Cells</topic><topic>Tumor suppressor genes</topic><topic>Tumors</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>He, Xiaoman</creatorcontrib><creatorcontrib>Li, Yongzhou</creatorcontrib><creatorcontrib>Chen, Qing</creatorcontrib><creatorcontrib>Zheng, Lei</creatorcontrib><creatorcontrib>Lou, Jianyao</creatorcontrib><creatorcontrib>Lin, Chuanshuai</creatorcontrib><creatorcontrib>Gong, Jiali</creatorcontrib><creatorcontrib>Zhu, Yi</creatorcontrib><creatorcontrib>Wu, Yulian</creatorcontrib><collection>Springer Nature OA Free Journals</collection><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>ProQuest Central (Corporate)</collection><collection>Calcium &amp; Calcified Tissue Abstracts</collection><collection>Chemoreception Abstracts</collection><collection>Immunology Abstracts</collection><collection>Neurosciences Abstracts</collection><collection>Nucleic Acids Abstracts</collection><collection>Health &amp; Medical Collection</collection><collection>ProQuest Central (purchase pre-March 2016)</collection><collection>Biology Database (Alumni Edition)</collection><collection>Medical Database (Alumni Edition)</collection><collection>ProQuest Pharma Collection</collection><collection>Technology Research Database</collection><collection>ProQuest SciTech Collection</collection><collection>ProQuest Natural Science Collection</collection><collection>Hospital Premium Collection</collection><collection>Hospital Premium Collection (Alumni Edition)</collection><collection>ProQuest Central (Alumni) (purchase pre-March 2016)</collection><collection>ProQuest Central (Alumni Edition)</collection><collection>ProQuest Central UK/Ireland</collection><collection>ProQuest Central Essentials</collection><collection>Biological Science Collection</collection><collection>ProQuest Central</collection><collection>Natural Science Collection</collection><collection>ProQuest One Community College</collection><collection>ProQuest Central Korea</collection><collection>Engineering Research Database</collection><collection>Health Research Premium Collection</collection><collection>Health Research Premium Collection (Alumni)</collection><collection>ProQuest Central Student</collection><collection>AIDS and Cancer Research Abstracts</collection><collection>SciTech Premium Collection</collection><collection>ProQuest Health &amp; Medical Complete (Alumni)</collection><collection>ProQuest Biological Science Collection</collection><collection>Health &amp; Medical Collection (Alumni Edition)</collection><collection>Medical Database</collection><collection>Biological Science Database</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>ProQuest Central (New)</collection><collection>ProQuest One Academic (New)</collection><collection>ProQuest Health &amp; Medical Research Collection</collection><collection>ProQuest One Academic Middle East (New)</collection><collection>ProQuest One Health &amp; Nursing</collection><collection>ProQuest One Academic Eastern Edition (DO NOT USE)</collection><collection>ProQuest One Applied &amp; Life Sciences</collection><collection>ProQuest One Academic</collection><collection>ProQuest One Academic UKI Edition</collection><collection>ProQuest Central China</collection><collection>Genetics Abstracts</collection><collection>MEDLINE - Academic</collection><collection>PubMed Central (Full Participant titles)</collection><jtitle>Cell death and differentiation</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>He, Xiaoman</au><au>Li, Yongzhou</au><au>Chen, Qing</au><au>Zheng, Lei</au><au>Lou, Jianyao</au><au>Lin, Chuanshuai</au><au>Gong, Jiali</au><au>Zhu, Yi</au><au>Wu, Yulian</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>O-GlcNAcylation and stablization of SIRT7 promote pancreatic cancer progression by blocking the SIRT7-REGγ interaction</atitle><jtitle>Cell death and differentiation</jtitle><stitle>Cell Death Differ</stitle><addtitle>Cell Death Differ</addtitle><date>2022-10-01</date><risdate>2022</risdate><volume>29</volume><issue>10</issue><spage>1970</spage><epage>1981</epage><pages>1970-1981</pages><issn>1350-9047</issn><eissn>1476-5403</eissn><abstract>Pancreatic ductal adenocarcinoma (PDAC) is one of the most lethal cancers and its dismal prognosis indicates the urgent need to elucidate the potential oncogenic mechanisms. SIRT7 is a classic NAD + -dependent deacetylase that stabilizes the transformed state of cancer cells. However, its functional roles in PDAC are still unclear. Here, we found that SIRT7 expression is upregulated and predicts poor prognosis in PDAC. Then we screened the new interacting proteins of SIRT7 by mass spectrometry and the results showed that SIRT7 can interact with O-GlcNAc transferase (OGT). O-GlcNAcylation stabilizes the SIRT7 protein by inhibiting its interaction with REGγ to prevent degradation, and hyper-O-GlcNAcylation in pancreatic cancer cells leads to hypoacetylation of H3K18 via SIRT7, which promotes transcriptional repression of several tumour suppressor genes. In addition, SIRT7 O-GlcNAcylation at the serine 136 residue (S136) is required to maintain its protein stability and deacetylation ability. In vivo and in vitro experiments showed that blocking SIRT7 O-GlcNAcylation at S136 attenuates tumour progression. Collectively, we demonstrate that O-GlcNAcylation is an important post-translational modification of SIRT7 in pancreatic cancer cells, and elucidating this mechanism of SIRT7 is expected to pave the way for the development of novel therapeutic methods in the future.</abstract><cop>London</cop><pub>Nature Publishing Group UK</pub><pmid>35422493</pmid><doi>10.1038/s41418-022-00984-3</doi><tpages>12</tpages><orcidid>https://orcid.org/0000-0002-2199-4353</orcidid><orcidid>https://orcid.org/0000-0002-1459-0158</orcidid><orcidid>https://orcid.org/0000-0001-6179-4586</orcidid><orcidid>https://orcid.org/0000-0002-9416-6663</orcidid><orcidid>https://orcid.org/0000-0003-2675-5834</orcidid><orcidid>https://orcid.org/0000-0001-6662-9440</orcidid><orcidid>https://orcid.org/0000-0002-6576-8008</orcidid><orcidid>https://orcid.org/0000-0002-4090-0551</orcidid><orcidid>https://orcid.org/0000-0003-0548-2742</orcidid><oa>free_for_read</oa></addata></record>
fulltext fulltext
identifier ISSN: 1350-9047
ispartof Cell death and differentiation, 2022-10, Vol.29 (10), p.1970-1981
issn 1350-9047
1476-5403
language eng
recordid cdi_pubmedcentral_primary_oai_pubmedcentral_nih_gov_9525610
source MEDLINE; Springer Nature - Complete Springer Journals; Elektronische Zeitschriftenbibliothek - Frei zugängliche E-Journals; PubMed Central
subjects 101/58
13/89
631/67/395
631/80/221
Adenocarcinoma
Apoptosis
Autoantigens
Biochemistry
Biomedical and Life Sciences
Carcinoma, Pancreatic Ductal
Cell Biology
Cell Cycle Analysis
Cell Proliferation
Deacetylation
Gene silencing
Humans
Life Sciences
Mass spectroscopy
N-Acetylglucosaminyltransferases - genetics
N-Acetylglucosaminyltransferases - metabolism
NAD - metabolism
O-GlcNAcylation
Pancreatic cancer
Pancreatic Neoplasms
Pancreatic Neoplasms - metabolism
Post-translation
Prognosis
Proteasome Endopeptidase Complex
Protein Processing, Post-Translational
Serine - metabolism
Sirtuins - genetics
Sirtuins - metabolism
Stem Cells
Tumor suppressor genes
Tumors
title O-GlcNAcylation and stablization of SIRT7 promote pancreatic cancer progression by blocking the SIRT7-REGγ interaction
url https://sfx.bib-bvb.de/sfx_tum?ctx_ver=Z39.88-2004&ctx_enc=info:ofi/enc:UTF-8&ctx_tim=2025-02-20T21%3A27%3A49IST&url_ver=Z39.88-2004&url_ctx_fmt=infofi/fmt:kev:mtx:ctx&rfr_id=info:sid/primo.exlibrisgroup.com:primo3-Article-proquest_pubme&rft_val_fmt=info:ofi/fmt:kev:mtx:journal&rft.genre=article&rft.atitle=O-GlcNAcylation%20and%20stablization%20of%20SIRT7%20promote%20pancreatic%20cancer%20progression%20by%20blocking%20the%20SIRT7-REG%CE%B3%20interaction&rft.jtitle=Cell%20death%20and%20differentiation&rft.au=He,%20Xiaoman&rft.date=2022-10-01&rft.volume=29&rft.issue=10&rft.spage=1970&rft.epage=1981&rft.pages=1970-1981&rft.issn=1350-9047&rft.eissn=1476-5403&rft_id=info:doi/10.1038/s41418-022-00984-3&rft_dat=%3Cproquest_pubme%3E2651687091%3C/proquest_pubme%3E%3Curl%3E%3C/url%3E&disable_directlink=true&sfx.directlink=off&sfx.report_link=0&rft_id=info:oai/&rft_pqid=2719632488&rft_id=info:pmid/35422493&rfr_iscdi=true